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<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_asio.reference.any_io_executor"></a><a class="link" href="any_io_executor.html" title="any_io_executor">any_io_executor</a>
</h3></div></div></div>
<p>
        <a class="indexterm" name="boost_asio.indexterm.any_io_executor"></a>
      </p>
<p>
        Polymorphic executor type for use with I/O objects.
      </p>
<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">any_io_executor</span> <span class="special">:</span>
  <span class="keyword">public</span> <span class="identifier">execution</span><span class="special">::</span><span class="identifier">any_executor</span><span class="special">&lt;...</span> <span class="special">&gt;</span>
</pre>
<h5>
<a name="boost_asio.reference.any_io_executor.h0"></a>
        <span class="phrase"><a name="boost_asio.reference.any_io_executor.member_functions"></a></span><a class="link" href="any_io_executor.html#boost_asio.reference.any_io_executor.member_functions">Member Functions</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/any_io_executor.html" title="any_io_executor::any_io_executor"><span class="bold"><strong>any_io_executor</strong></span></a> <span class="silver">[constructor]</span>
                </p>
              </td>
<td>
                <p>
                  Default constructor. <br> <span class="silver"> —</span><br> Construct in an empty state.
                  Equivalent effects to default constructor. <br> <span class="silver"> —</span><br> Copy constructor.
                  <br> <span class="silver"> —</span><br> Move constructor. <br> <span class="silver"> —</span><br> Construct to point
                  to the same target as another any_executor. <br> <span class="silver"> —</span><br> Construct
                  a polymorphic wrapper for the specified executor.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/context.html" title="any_io_executor::context"><span class="bold"><strong>context</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Obtain the underlying execution context.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/execute.html" title="any_io_executor::execute"><span class="bold"><strong>execute</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Execute the function on the target executor.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/operator_bool.html" title="any_io_executor::operator bool"><span class="bold"><strong>operator bool</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Determine whether the wrapper has a target executor.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/operator_eq_.html" title="any_io_executor::operator="><span class="bold"><strong>operator=</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Assignment operator. <br> <span class="silver"> —</span><br> Move assignment operator. <br>
                  <span class="silver"> —</span><br> Assignment operator that sets the polymorphic wrapper to
                  the empty state.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/prefer.html" title="any_io_executor::prefer"><span class="bold"><strong>prefer</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Obtain a polymorphic wrapper with the specified property.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/query.html" title="any_io_executor::query"><span class="bold"><strong>query</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Obtain the value associated with the specified property.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/require.html" title="any_io_executor::require"><span class="bold"><strong>require</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Obtain a polymorphic wrapper with the specified property. <br>
                  <span class="silver"> —</span><br>
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/swap.html" title="any_io_executor::swap"><span class="bold"><strong>swap</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Swap targets with another polymorphic wrapper.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/target.html" title="any_io_executor::target"><span class="bold"><strong>target</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get a pointer to the target executor.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/target_type.html" title="any_io_executor::target_type"><span class="bold"><strong>target_type</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get the type of the target executor.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/_any_io_executor.html" title="any_io_executor::~any_io_executor"><span class="bold"><strong>~any_io_executor</strong></span></a> <span class="silver">[destructor]</span>
                </p>
              </td>
<td>
                <p>
                  Destructor.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<h5>
<a name="boost_asio.reference.any_io_executor.h1"></a>
        <span class="phrase"><a name="boost_asio.reference.any_io_executor.related_functions"></a></span><a class="link" href="any_io_executor.html#boost_asio.reference.any_io_executor.related_functions">Related
        Functions</a>
      </h5>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                <p>
                  Name
                </p>
              </th>
<th>
                <p>
                  Description
                </p>
              </th>
</tr></thead>
<tbody>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/operator_not__eq_.html" title="any_io_executor::operator!="><span class="bold"><strong>operator!=</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Inequality operator.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="any_io_executor/operator_eq__eq_.html" title="any_io_executor::operator=="><span class="bold"><strong>operator==</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Equality operator.
                </p>
              </td>
</tr>
</tbody>
</table></div>
<p>
        The <code class="computeroutput"><span class="identifier">any_io_executor</span></code> type
        is a polymorphic executor that supports the set of properties required by
        I/O objects. It is defined as the <a class="link" href="execution__any_executor.html" title="execution::any_executor"><code class="computeroutput"><span class="identifier">execution</span><span class="special">::</span><span class="identifier">any_executor</span></code></a> class template parameterised
        as follows:
      </p>
<pre class="programlisting"><span class="identifier">execution</span><span class="special">::</span><span class="identifier">any_executor</span><span class="special">&lt;</span>
  <span class="identifier">execution</span><span class="special">::</span><span class="identifier">context_as_t</span><span class="special">&lt;</span><span class="identifier">execution_context</span><span class="special">&amp;&gt;,</span>
  <span class="identifier">execution</span><span class="special">::</span><span class="identifier">blocking_t</span><span class="special">::</span><span class="identifier">never_t</span><span class="special">,</span>
  <span class="identifier">execution</span><span class="special">::</span><span class="identifier">prefer_only</span><span class="special">&lt;</span><span class="identifier">execution</span><span class="special">::</span><span class="identifier">blocking_t</span><span class="special">::</span><span class="identifier">possibly_t</span><span class="special">&gt;,</span>
  <span class="identifier">execution</span><span class="special">::</span><span class="identifier">prefer_only</span><span class="special">&lt;</span><span class="identifier">execution</span><span class="special">::</span><span class="identifier">outstanding_work_t</span><span class="special">::</span><span class="identifier">tracked_t</span><span class="special">&gt;,</span>
  <span class="identifier">execution</span><span class="special">::</span><span class="identifier">prefer_only</span><span class="special">&lt;</span><span class="identifier">execution</span><span class="special">::</span><span class="identifier">outstanding_work_t</span><span class="special">::</span><span class="identifier">untracked_t</span><span class="special">&gt;,</span>
  <span class="identifier">execution</span><span class="special">::</span><span class="identifier">prefer_only</span><span class="special">&lt;</span><span class="identifier">execution</span><span class="special">::</span><span class="identifier">relationship_t</span><span class="special">::</span><span class="identifier">fork_t</span><span class="special">&gt;,</span>
  <span class="identifier">execution</span><span class="special">::</span><span class="identifier">prefer_only</span><span class="special">&lt;</span><span class="identifier">execution</span><span class="special">::</span><span class="identifier">relationship_t</span><span class="special">::</span><span class="identifier">continuation_t</span><span class="special">&gt;</span>
<span class="special">&gt;</span>
</pre>
<h5>
<a name="boost_asio.reference.any_io_executor.h2"></a>
        <span class="phrase"><a name="boost_asio.reference.any_io_executor.requirements"></a></span><a class="link" href="any_io_executor.html#boost_asio.reference.any_io_executor.requirements">Requirements</a>
      </h5>
<p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/any_io_executor.hpp</code>
      </p>
<p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code>
      </p>
</div>
<div class="copyright-footer">Copyright © 2003-2024 Christopher M. Kohlhoff<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
</div>
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